The Twin Air Air Filter's design, high-quality materials and superior construction deliver unbeatable performance and protection - and make Twin Air Filters the hands-down choice of more World and National Champions than all other filters combined.

Twin Air filters are designed to increase airflow while ensuring the highest level of protection from dirt / dust.

Coarse open-pore foam catches airborne dirt, grime and sand.

Fine open-pore inner foam acts as a second filter to trap the smallest particles while ensuring maximum air passage.

Fused outer and inner elements prevent dirt and grime from being lodged between layers, unlike Twin Air, this can be a problem with inferior two-piece designs. Trapped particles can restrict airflow. And, if dirt works it's way into your engine, a pinhead-sized granule will gouge your cylinder, piston and rings like a bullet.

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344 Reviews

4.8 out of 5 stars

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I haven't used the one that I purchased yet, but I've used these in the past and they work great.

bulaiaTop 1000 ContributorVerified Purchaser

3 months 2 days agoKalihi - Palama, Honolulu, HI, USA

Durability 4/5
Ease of Installation 5/5
Performance 5/5
Style 5/5

Twin Air Air Filter

even with proper cleaning materials, the durability
could be better.

Stire517Verified Purchaser

3 months 7 days agoNorth Myrtle Beach, SC, USA

Durability 4/5
Ease of Installation 5/5
Performance 5/5
Style 4/5

Only filter I'll use

I have been using Twin Air products for years. They fit great, and hold well to all the cleaning required for maintaining a MX bike. I always keep a spare oiled up in a plastic bag ready to go. When I wash the bikes I use the wash box covers to get everything cleaned up, then install the fresh filter so it's ready to go.

BWhit

3 months 7 days agoRaleigh, NC, USA

Durability 5/5
Ease of Installation 5/5
Performance 5/5
Style 5/5

Good filter

installs easy. easy to clean. had others that the glue that holds the different foam around the rim would come apart. this ones seems to bond well with no issues.

erik350husqvarna

3 months 26 days ago

Durability 4/5
Ease of Installation 5/5
Performance 4/5
Style 3/5

Relaible

all I've run is twinair filters for my husqvarna 350. they are affordable and easy to clean if you use their 3 step cleaner

Kiss541Verified Purchaser

4 months 29 days agoNeenah, WI, USA

Durability 5/5
Ease of Installation 5/5
Performance 5/5
Style 5/5

Best Air Filter

First of all, Motosport.com gets it right with what they sell, not like Amazon which may list one thing and send you something for a different bike. As for this filter, it cleans up better than any other filter I've used, it feels more durable, and if installed properly you can be sure it will not leak dirt and dust into your engine. I replace my filter after every day of riding.

BigToe707Verified Purchaser

Over 5 months agoPort Orchard,WA

Durability 5/5
Ease of Installation 5/5
Performance 5/5
Style 4/5

Twin Air

The only filter I have ever used. The price is right and they last forever.

Jmarkel475Top 250 ContributorVerified Purchaser

Over 5 months agoNorthEast

Durability 5/5
Ease of Installation 5/5
Performance 5/5
Style 5/5

Cant go wrong with twin air.

MegashovelmanTop 1000 Contributor

Over 5 months agoVIRGINIA

Durability 5/5
Ease of Installation 5/5
Performance 5/5
Style 5/5

Breathable Air Filter 4 Bike

A good lung source for dirt bike to keep unwanted grit out of engine and have high performance.

GofastVerified Purchaser

Over 7 months agoSpokane, WA, USA

Durability 5/5
Ease of Installation 5/5
Performance 5/5
Style 5/5

Best air filter made

The best air filter out there. I have been using Twin Air since 1999 and they work great. They keep the dirt out with high quality air filter oil. They last a long time with the proper care. I would not buy any other. I have used them on three different KTM's, GAS GAS, and HONDA.

YZDOCTop 500 ContributorVerified Purchaser

Over 7 months agoSulverado

Durability 5/5
Ease of Installation 5/5
Performance 5/5
Style 5/5

Excellent choice

By far a great filter. Performs as intended, use on all my bikes and have been for years. I'm old school and still use old waste gas and soapy water to clean filters. These hold up very well in that abuse. I get about 2 years of rotation between my 2 filters per bike. That is a bunch of use.

noneTop 1000 ContributorVerified Purchaser

Over 7 months agoWoodward, OK 73801, USA

Durability 5/5
Ease of Installation 5/5
Performance 5/5
Style 5/5

Great product

perfect fit and a excellent product!

Madman32Verified Purchaser

Over 7 months agoWampsville ny

Durability 5/5
Ease of Installation 5/5
Performance 5/5
Style 5/5

Air filter

Twin air is a top of the line filter n works great

nick75Top 1000 ContributorVerified Purchaser

Over 7 months ago

Durability 5/5
Ease of Installation 5/5
Performance 5/5
Style 5/5

Great filter.

Great filter.

ByroVerified Purchaser

Over 7 months agoCanton OH

Durability 4/5
Ease of Installation 4/5
Performance 4/5
Style 4/5

It's an air cleaner.

It's an air cleaner folks. It does exactly what it's name implies. Twin air makes a durable long lasting reusable filter and Motorsport delivers quickly.

RhynoTop 1000 ContributorVerified Purchaser

Over 8 months agoNixa

Durability 5/5
Ease of Installation 5/5
Performance 5/5
Style 5/5

Great filter

Fits perfectly and is an easy clean and Re oil. Love it

Cr125

Over 8 months ago

Durability 4/5
Ease of Installation 4/5
Performance 5/5
Style 4/5

Good purchase

Only about 5 rides on filter but so far has held up great

Rich27Verified Purchaser

Over 8 months ago

Durability 5/5
Ease of Installation 5/5
Performance 5/5
Style 5/5

Only airfilter I will run on my bike!

HookedVerified Purchaser

Over 9 months agoDover, Ohio

Durability 5/5
Ease of Installation 5/5
Performance 5/5
Style 5/5

Best filters on the market

I have used other filters, but nothing I've tried has been as good as Twin Air filters.

A: Yes. Just be sure to correctly select the Year/Make/Model of your bike before ordering so we can be sure to send you the correct filter for your bike. Also, feel free to give us a call at 888-676-8853 and we would be happy to help you out with your order.

Moose585

Location: Florida

Q: Why did I receive a 2010CRF450R Twin Air air filter for a 1998 suzuki rm 125?

A: Please give us a call at 888-676-8853 so that we can look into your order.

KEN33

Location: Okinawa Prefecture, Japan

Q: Ordered Air Filter for 2010CRF450R, but there's a Rectangular opening at the bottom of the BOX, I need the sponge that covers that, How can i get it?

1 year 11 months ago

the Air Box has a Rectangular opening at the bottom, right where the Tire is, and where i wash A lot. There was some type of sponge filter over that Rectangular opening and it fell apart when Washing it.
What was this cover? and How do I order another one?
I just ordered the TWIN AIR Filter. but thats just the cover for the intake, The hole in the bottom has no cover now,,,,

A: From the factory the Honda CRF450R there is not a foam at the bottom of the airbox. That most likely has been added from a previous owner or dealership. They airbox is designed to drain out the bottom.

To replace it, you could cut up an old air filter or get some skid plate foam if you want to replace what you have.

fast483

1 year 9 months agoLocation: Thornton

A: I would look for this piece of foam the OEM or just buy a bulk package of foam and cut a piece to size. You will also find many good places to use the leftover foam, especially if you have areas on your bike that get packed with mud.

gitboxman1134

Top 1000 Contributor

1 year 8 months agoLocation: Longview, TX

A: The opening on the bottom of the air box is normally left open to allow drainage and larger debris to fall out. I use the Twin Air wash cover that replaces the filter and cage when I wash my bikes.

A: Twin air wll fit, you just need to make sure you order the one for your bike.

Dirtbug

Top 25 ContributorTop 50 Contributor

2 years 3 months agoLocation: Edgewood, NM 87015, USA

A: Yes, there is a Twin Air filter for the 2012 YZ85. However, you have to order it for the specific bike and model.

MotoSportGrantK

MotoSport StaffExpertTop 1 Contributor

2 years 3 months ago

A: Yes, just be sure to correctly select the Year/Make/Model of your bike before ordering so we can be sure to send you the correct Twin Air Air Filter for your bike. Also, feel free to give us a call at 888-676-8853 and we would be happy to help you out with your order.

A: I would recommend Twin Air's filter products which you can find here: http://www.motosport.com/dirtbike/search/?textsearch=twin+air

Dirtbug

Top 50 ContributorTop 25 Contributor

2 years 3 months agoLocation: Edgewood, NM 87015, USA

A: Use any FOAM FILTER oil, applied as recommended.

Daniel

Top 1000 Contributor

2 years 3 months ago

A: I use the green honda oil. Soak the entire filter and then let it drip dry for 24 hours. Its real messy but it works great. Make sure to get the honda cleaner too. It take the oil and dirt right out when you go to clean it. I have two filters. Stay away from the spray oil!

Jason

2 years 1 month agoLocation: Orange county

A: I just used the maxima filter oil as long as you rub it into the filter and get a nice coat on the outside of it your good to go

MotoSportExpert

MotoSport StaffExpert

2 years 1 month ago

A: Any of the foam filter oils will work on this Twin air filter. I prefer the spray on foam filter oil.

fast483

1 year 9 months agoLocation: Thornton

A: There are many manufacturers of foam filter oil. As long as you get the oil that is specified for foam filters, you should be okay. My preference is the Twin Air bio oil or No Toil bio oil. Be advised that you will also need cleaner to remove the oil and clean the filter. These are specific to the types of oil also, either bio or regular. Do not try to use anything other than specific air filter oil cleaner as you will damage and ruin the filter.

A: Unfortunately without knowing what bike this is for I cannot provide a part #. If you give us a call with your model information we can let you know what part number the filter is for your specific bike.

Dirtysdad

Top 50 ContributorTop 100 Contributor

2 years 10 months agoLocation: Atlanta, GA, USA

A: Depends on the type of bike you have. Type in your make,model and year on the home page of Motosport and it will take you to all the parts offered for your ride

yamil

Location: Canterbury, CT, USA

Q: Do you always have to oil up the air filter and if so what kind of oil or lube?

A: Yes, the foam filters do require you to oil the filter. Depending on riding conditions, the filter should be checked after each ride and cleaned accordingly. A dirty air filter will make your bike run poorly and if it gets too dirty, it can let contaminants into the engine which will severely reduce engine life. I prefer PJ1 foam filter oil and cleaner. Twin air also has their oil and cleaner which is good, and so does No-Toil.

dculls

Top 500 Contributor

Over 3 years ago

A: ALWAYS ALWAYS ALWAYS!! You absolutely must use air filter oil, and some waterproof grease on the rim for a good seal. Any tiny amount of dirt or sand that gets past the filter will mess up your engine! Check the filter after every ride, and if it's not clean or if it's black or anywhere close to black, clean it with air filter cleaner and some warm water with soap, and then more water.

stuart37

Over 3 years agoLocation: Houston, TX, USA

A: Yes you should always oil your filter. You can use spray on oil or the pour on just don't use to much of ether. I recommend the pour on oil put some on the filter and squeeze out all excess oil.

2013Kx450

Over 3 years agoLocation: Denver, CO, USA

A: Oil is highly recommend. With out it the filter will be far less effective and motor damage could occur as a result. I prefer bel-ray filter oil and cleaner. I've also used pj1 spray on oil and cleaner with good results however it is thinner oil than belray so when riding in dusty areas I use belray.

AndyMX47

2 years 11 months agoLocation: Charlotte NC

A: Yes - the oil helps trap the dirt. I use Bel-Ray foam filter treatment, or Maxima FFT - the sticky stuff. I have not had good luck with the alcohol based filter oils.

greenrider

Top 500 ContributorTop 1000 Contributor

2 years 10 months agoLocation: Murrells Inlet, SC, USA

A: YES! You must never run a dry filter. Always oil the filter. Make sure its clean and dry before you oil it. Everyone has a preference to what they think is the best, but any of the filter oils sold here will work. I like Bel Ray personally. Obtain a nice even coat by thoroughly working it into the filter. Dont overly saturate. Also you need a nice coat of grease between filter and air box. Without a proper functioning air filter your engine will soon be toast.

Dirtysdad

Top 50 ContributorTop 100 Contributor

2 years 10 months agoLocation: Atlanta, GA, USA

A: Yes. Unless you order a pre-oiled filter. Then after cleaning, you have to re oil.There are plenty of air filter oils out there. Just remember after you clean and oil your filter, it needs to sit for about 24 hrs before you run it in your bike

Yamahondazuki

Top 1000 Contributor

2 years 7 months agoLocation: Any track, NC

A: Always oil the filter when it's clean to prevent particles being pulled through. Any foam filter oil spray from an auto store should do just fine. Be sure to let it dry.

Dirtbug

Top 25 ContributorTop 50 Contributor

2 years 3 months agoLocation: Edgewood, NM 87015, USA

A: Yes, before use, saturate the filter with FOAM FILTER OIL. Wring out the excess oil, and let it dry out for about 30 min. before running the bike.

TOPGUNMX

2 years agoLocation: Litchfield, IL 62056, USA

A: YAMAHA LUBE Bio-degradable Foam Air Filter Oil

JohnCF

Q: Washing? after i have it all washed can i throw it on a shoe rack in my dryer to dry, or will i damage the filter?

A: You should either let the filter air dry, or blow it dry with compressed air.

Snap1983

Top 250 ContributorTop 50 ContributorTop 25 Contributor

Over 3 years agoLocation: Crowley, LA, USA

A: If you put it in a dryer you will damage the filter. This and most filters like this need to be air dried after they are washed. If you try to dry it with an air dryer or anything other than just leaving it in the sun it will damage the filter.

dculls

Top 500 Contributor

Over 3 years ago

A: do not put it in the dryer, but you can put a nail in your wall and hang it on that to dry

Winters

Top 500 ContributorTop 1000 Contributor

2 years 7 months agoLocation: Mustang, OK, USA

A: Never put in the dryer. The heat will damage the product.

Just let air dry and re-oil let it hang for about 45 mins and put in gallon size zip-lock bag til you are ready to ride. Just remember to install before riding... Hint... Put the zip-lock bag with filter on the seat and use some painter's tape to secure so you will remember to install.

Ranger83

Top 1000 Contributor

2 years 4 months agoLocation: Michigan

A: It needs to air dry for best performance. Using a dryer will break down the material which will lead to cracks and broken down foam which allow dirt to get in.....then you've got BIG problems. Be sure to use your favorite oil and lube it up good, that also helps prevent dirt from getting in.

Dirtbug

Top 25 Contributor

2 years 3 months agoLocation: Edgewood, NM 87015, USA

A: Is best to let it air dry.

Daniel

Top 1000 Contributor

2 years 3 months ago

A: I wouldn't recomend it. Roll it up in a dry towel tight. Then soak it in oil and let it drip dry for 24 hours. Stay awsy from the spray oil.